High-Efficiency Rechargeable Fe-CO Battery: A Route for Effective CO Conversion and Energy Storage.

Because of their high theoretical energy density, metal-CO batteries based on Li, Na, or K have attracted increasing attention recently for meeting the growing demands of CO recycling and conversion into electrical energy. However, the scarcity of active anode material resources, high cost, as well as safety concerns of Li, Na, and K create obstacles for practical applications. Herein, we demonstrate for the first time a high-efficiency (η = 77.

In Situ/Operando Characterization Techniques: The Guiding Tool for the Development of Li-CO Battery.

In recent times, the Li-CO battery has gained significant importance arising from its higher gravimetric energy density (1876 Wh kg ) compared to the conventional Li-ion batteries. Also, its ability to utilize the greenhouse gas CO to operate an energy storage system and the prospective utilization on extraterrestrial planets such as Mars motivate to practicalize it. However, it suffers from numerous challenges such as (i) the reluctant CO reduction/evolution; (ii) solid/liquid/gas interface blockage arising from the deposition of Li CO discharge product on the cathode; (iii) high overpotential to decompose the stable discharge product Li CO ; and (iv) instability of the electrolytes.

Flexible and free-standing bacterial cellulose derived cathode host and separator for lithium-sulfur batteries.

This study demonstrates flexible, ultra-high rate, and long cycle life lithium‑sulfur batteries using bacterial cellulose (BC) derived cathode host as well as separator. The work also includes a new strategy to use active sulfur in the form of catholyte added directly to the electrolyte for improved sulfur utilization. The fabricated LiS cell with carbonized bacterial cellulose (CBC) as a cathode host and BC as a separator (CBC@BC) delivers an impressive capacity of 740 mAh g at 1C.

New Thiourea-Based Ionic Liquid as an Electrolyte Additive to Improve Cell Safety and Enhance Electrochemical Performance in Lithium-Ion Batteries.

Our society is critically dependent on lithium-ion batteries (LIBs) as a power source for portable electronic gadgets. One of the major problems with these batteries is the degradation of the materials inside them. In addition to the reduced cell life, building-up of these degraded products inside the cells is very detrimental to the safe operation.

Synthesis, characterization and application of a non-flammable dicationic ionic liquid in lithium-ion battery as electrolyte additive.

A novel dicationic room temperature ionic liquid, 1,1'-(5,14-dioxo-4,6,13,15-tetraazaoctadecane-1,18-diyl) bis(3-(sec-butyl)-1H-imidazol-3-ium) bis((trifluoromethyl)-sulfonyl) imide has been synthesized and fully characterized. Its thermal and electrochemical analyses along with transport properties have been studied. We propose it as a potential nominal additive to the commonly used conventional organic carbonate electrolyte mixture and study its adaptability in Lithium-ion batteries which are the prime power sources for ultraportable electronic devices.